#VU26755 UNIX symbolic link following in Opensuse and exim (OpenSUSE package)


Published: 2020-04-10

Vulnerability identifier: #VU26755

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-8015

CWE-ID: CWE-61

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Opensuse
Operating systems & Components / Operating system
exim (OpenSUSE package)
Operating systems & Components / Operating system package or component

Vendor: SUSE

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a symlink following issue within the packaging of exim in openSUSE. A local user can create a specially crafted symbolic link to a critical file on the system and escalate privileges from mail to root.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Opensuse: 15.1


External links
http://bugzilla.suse.com/show_bug.cgi?id=1154183
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00010.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability